Changes in accommodation and behavioural performance with a contact lens for myopia management: A comparison between a dual-focus and a single-vision soft contact lens
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Redondo Cabrera, Beatriz; Vera Vílchez, Jesús; Molina Romero, Rubén; Galán, Tomás; Machado, Pedro; Jiménez Rodríguez, RaimundoEditorial
John Wiley & Sons
Materia
Accommodation Behavioural performance Dual-focus soft contact lenses Myopia management
Date
2022-03-19Referencia bibliográfica
Redondo, B... [et al.]. Changes in accommodation and behavioural performance with a contact lens for myopia management: A comparison between a dual-focus and a single-vision soft contact lens. Ophthalmic Physiol Opt. 2022; 00: 1– 9. [https://doi.org/10.1111/opo.12978]
Abstract
Introduction: Dual-focus
soft contact lenses for myopia management have demonstrated
to be an effective strategy to reduce myopia progression. However, this
optical design has been shown to alter visual quality and accommodative function.
The aim of this study was to examine the accommodative and behavioural performance
during the execution of a psychomotor vigilance task (PVT) while wearing
dual-focus
and single-vision
soft contact lenses.
Methods: The steady-state
accommodative response was recorded with the
WAM-5500
binocular open-field
autorefractor during the execution of a 10-min
PVT at 50 cm either with the dual-focus
(MiSight 1-day)
or single-vision
(Proclear
1-day)
soft contact lenses, using a sample of 23 healthy young adults. Each experimental
session was performed on two different days in a counterbalanced order.
Results: A greater lag of accommodation, variability of accommodation and reaction
time was found while wearing dual-focus
in comparison with single-vision
soft contact lenses (mean differences during the 10-min
PVT were 0.58 ± 0.81 D,
p < 0.001; 0.31 ± 0.17 D, p < 0.001 and 15.22 ± 20.93 ms, p = 0.002, respectively). Also,
a time-on-
task
effect was found for the variability of accommodation and reaction
time (p = 0.001 and p < 0.001, respectively), observing higher values over time.
However, the lag of accommodation did not change significantly as a function of
time-on-
task
(p = 0.33).
Conclusion: Dual-focus
soft contact lens wear influences the steady-state
accommodative
response and behavioural performance during the execution of a visual
vigilance task in the short-term.
Eye care practitioners should be aware of these effects
when prescribing these lenses for myopia management, and provide specific
recommendations according to the individual visual needs.